Showcase sliding door mounting



March 7, I939. VANDERVELD 2,149,644

7' SHOWCASE SLIDING DOOR MOUNTING Filed Dec. 21 1936 Patented Mar. 7, 1939 2,149,644

UNITED STATES PATENT QFFEQE 2,149,644 SHOWCASE. SLIDING DOOR MOUNTING Anthony Vanderveld, Grand Rapids, Mich, assignor to Grand Rapids Store Equipment Company, Grand Rapids, Mich, a corporation of Michigan Application December 21, 1936, Serial No. 116,921

1 Claim. (01. 308-6 This invention relates to mountings for sliding upper and lower rearframe members of the case. doors, which mountings are particularly useful In the upper frame member of the case are parin connection with sliding doors of showcases. allel grooves to receive the upper edge portions A showcase is largely of glass and the doors prefof the glass door plates 2 with a tongue 3 between 5 erably are glass plates disposed at the back of the grooves to space the plates from each other. 5 the showcase and mounted to move in adjacent Each door 2 at its lower edge enters a longituparallel vertical planes so that they may be slid dinal channel 4 of sheet metal which is permaone within the other for access to articles of mernently secured to each of the plates 2 with the chandise supported and displayed in the case. web of the channel at the lower edge of each of The present invention relates to a very practhe plates 2 and the flanges extending upwardly 10 tical, useful, simple and economical anti-friction one at each side thereof as best shown in Fig. '2. mounting for the doors whereby they are very In the floor or bottom frame member at the easily moved. The anti-friction mountings are back of the case a relatively wide longitudinal carried upon adjacent parallel channels located groove is cut to receive therein an assembly of lengthwise of and below the surface of the floor two channels with a separator plate between the 15 of the showcase and at the back. Such channels channels. Said channels each have a lower web are liable to collect dust and dirt; and the mount- 5 and vertically extending flan e Th h nings should h f h a ch ct r that the will nels are located side by side with a vertical sepanot become fouled therewith and deteriorate as rating plate 1 between the adja flanges 6 0f to their ease of operation and efliciency because e Same o Which the Separating plate is P 29 of such dirt, dust and the like. With my invenm n n y secured as y p w l in T tion the mountings for the doors, upon which groove in the rear bottom frame member of the the lower edges of the doors rest, are located Showcase s con d ab y greater in depth than Wholly above the bottoms of the supporting the height of t e flanges The Separator plate channels in which the dirt or dust may collect 1 extends above said flanges substantially flush 25 so that there is no interference with the operawith the upper surface of the bottom rear frame tlon of the mountings because of dirt or dust member in which the groove is made. collection. A movable anti-friction carriage is carried on An understanding of the invention and the the upper edges of the flanges 6 of each of the 30 preferred form of structure embodying the same chann m des rib d. s id carriage includes a 30 may be had from the following description, taken metal body formed from a single length of thin in connection with th mp y dr win sheet metal bent longitudinally between its edges in which, to provide sides 8 connected by a curved portion Fig. l is a rear elevation of a showcase showing 9. At spaced apart points in the sides 8 opposed the doors located for sliding movement, one withopenings are m d a d et l b n m are h d 55 in the other. between the sides with opposite side portions of Fig. 2 is a fragmentary perspective and section the n extending through t openings in said showing the doors and the mounting therefor in Sides Vertical Section This carriage member is made so that the 0 3 15 a fragmtmtary lqngltudinal sectlon sides 8 are inclined to the vertical and converge 4U Showmg lmmedlate antl'fnction movable downwardly toward each other to the connecting carriage m side etevatlort t the whmh curved portion 9, thereby providing a substancarrles the same in longitudinal section, and

Fig. 4 is a perspective view of the movable anti tlagy .22 gg z g g on and above friction carriage which is disposed between the eaclri iif the l l i a r i nels ficased at opposite sides of lower edge of a door and a channel which carries the separator plate 1. The length thereof is the same.

' Like reference characters refer to like parts in stantlany three-fourths of length of t t different, figures of t drawing, showcase. The balls In at their upper portions The showcase I may be of any conventional extend above the upper edges of the sides 8. The 50 structure and have the usual framework in which movable carriages are assembled y merely p a plates of glass are secured at the front, at both them p e flanges 5 s Shown i ends and at the top, the rear side being adapted after which the glass doors are put in place, the to be closed by doors 2 which are glass plates lower web portion of the metal border members disposed in parallel vertical planes between the 4 at the lower edges of the doors bearing upon 55 the upper parts of the balls l0, all as fully dis- I claim: closed in Fig. 2. A construction of the class described compris- When the door is moved laterally it rides upon ing a sliding door, a channel member located the balls which in turn ride upon the upper edges therebelow having upwardly extending sides, a 5 6 of the channels described. The friction is V-shaped carriage member mounted within said greatly reduced or substantially eliminated so channel having a plurality of opposed openings that a very free and easy movement is obtained. therein spaced from the top and bottom edges The lowermost points of the meta] carriage body thereof, balls carried between the sides 01 said members, that is, the curved connecting sections Carriage and extending through Said openings 1 9, are located sufiiciently above the bottom or and aboge F ggj g i 3 2 10 1 upper e geso 53.1 0 211116 me g g fgg zgi g 23 331 33 gg 2: 2: 31; edges of said V-shaped carriage member being d apart the same distance as the sides of collect, so that it in no way interferes with the Space ease of movement of the doors. the channel member, said sliding door havmg a channel member about the lower edge thereof 15 15 The construction, while of a simple character, having a horizontal lower edge equal in width to is especially practical and useful for the purpose the Width f the firstmamed channel member for which it is designed. The invention is defined and having a point t t ith h of id n h pp n claim d is o be c d re balls at a point substantially in the center of said comprehensive of all forms of structure coming lower edge.

within its scope. ANTHONY VANDERVELD. 

